| 2. | From all respects , such as scale economy , technological progress , environmental protection , long - term sustainable development , etc . , there is necessity to build a salt production base of magnesium . from all respects , such as abundant high quality resources , fine condition to exploit , energy abundance , convenient traffic and communications , there is feasibility to build this base 从规模经济、技术进步、环境保护、长期可持续发展等各个方面来看,建设一个镁盐生产基地有其必要性,而从优质资源丰富,开采条件好,能源充足、交通通讯方便等条件来看,建设该基地又有其可行性。 |